Internal combustion engine



W. T. REID.

INTERNAL COMBUSTION ENGINE. APPLICATION FILED JULY 17, I913.

1,818,409, Patented Oct. 14,1919.

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WIIiFRIID THOMAS REID, OF BRISTOL, ENGLAND, ASSIGNOR TO THE BRITISH &'COLONIAL AEROPLANE COMPANY LIMITED, 0F BRISTOL, ENGLAND.

INTERNAL-COMBUSTION ENGINE.

Application filed July 17, 1918. Serial No, 245,376.

To all whom it may concern:

Be it known that I, WILFRID THOMAS REID, a subject of the King ofEngland, residing at Bristol, England, have invented certain new anduseful Improvements in Internal- Combustion Engines, of which thefollowing is a specification.

This invention relates to internal-combustion engines.

The object of the present invention is the construction of aninternal-combustion engine wherein the auxiliaries can be actuated byvery simple gearing and wherein they can be conveniently arranged andcan have their weights and their bulk symmetrically disposed at oppositesides of the longitudinal center-line of the engine.

According to the present invention there is combined with an engine ofthe type in which the main drive is taken from a principal single ortWin gear-wheel in the middle of the crank-shaft, a subordinategear-wheel also in or about in the middle of the length of thecrank-shaft, and to this subordinate gear-wheel (or instead, if desired,to the main gear-wheel or one of them) is geared a series ofsecondaryshafts. The secondary shafts are parallel to one another, and lie oneabove another, and preferably in a vertical plane common to them all,and they are all transverse to the engine crank-shaft, and are supportedin bearings in the engine. They are geared to the engine crank-shaft.One of them may be above that crank shaft and geared directly byhelically-toothed gear-wheel on that secondary shaft to anotherhelically-toothed gear-Wheel at rightangles to it and fixed on theengine crankshaft. Another of the secondary shafts (herein forconvenience alluded to as the second) may be immediately below theengine crank-shaft, and can similarly gear directlywith thehelically-toothed wheel on the latter- A third shaft of the secondaryshafts may -be below the second and there maybe a fourth and fifth belowthe third. Of the third, fourth and fifth secondary shafts each has ahelically-toothed wheel fixed upon it; that on the fi'fth is in the sameplane as and gears directly with that on the fourth, while that on thefourth is in thesame plane as and gears directly with that on the third,and that on the third is in the same plane as I Specification of LettersPatent.

and gears directly with that on the second. Thus there need be only sixgear-wheels for the five secondary shafts, i. e. five on those shaftsand one on the crank-shaft.

- The accompanying drawings illustrate an internal-combustion enginewith the present invention applied thereto. In these draw- 111gs Figure1 is a longitudinal section of the engine, and I Fig. 2 is a transversevertical section of Fig. 1; as to the left-hand half of Fig. 2 it is asection through oneofthe cylinders in Fig. 1, and as to the right-handhalf it is a section through the middle of Fig. 1.

"In the engine illustrated the main drive is taken from a twingear-wheel GW in the middle of the crank-shaft OS. A subordinategear-wheel SGW is in the middle of the length of the crank-shaft beingan instegral part of the boss 9w of the twin gear- Wheel GW which is avirtual continuation of the crank-shaft from one set of cranks G O C tothe other set of cranks O C 0 To this subordinate gear-wheel is geared aseries of secondary shafts 1, 2, 3, 4, 5. The secondary shafts areparallel to one another and lie above one another in a vertical planedirectly with the helically-toothed wheel SGW on the latter by means ofa helicallytoothed wheel 2 fixed on the shaft 2.

A third secondary shaft 3 is below the second and'geared .to the wheel 2on the second shaft by the wheel 3 on the third secondary shaft 4,geared by a wheel 4: fixed upon it to the wheel 3 of the shaft 3 above,and geared below to a fifth secondary shaft 5 by the wheel 5 fixed tothe latter.

At each end of the secondary shaft 1 is a magneto M, only one of thesemagnetos beshaft. Below the third shaft is a fourth, 1

. the two related parts of a lubricating-pump, I one part, asuction-device SD, drawing'from the sump S, and the other part, apressuredevice ID, delivering into the lubrication circulation-system.The fifth shaft is geared I through the wheel 5. fixed to it, with theshaft 3 by way of the idler P on "shaft 4.

The construction illustrated for driving .centrally from the main crankshaft is claimed in my copending application, Se-

' rial No. 249,023, filed August 8, 1918.

What I claim as my invention and desire to secure by Letters Patent is.1. In an internal combustion engine, the combination with a crank shafthaving a main driving gear wheel, of a subordinate gear wheel adjacentthereto, a series of secondary shafts extending transversely to saidcrank shaft and symmetrically on opposite sides of the engine, asecondary gear wheel mounted centrally on each of said secondary shaftsand geared with said su'bordinate gear wheel, and auxiliary devicesarranged in pairs with one device of each pair at opposite ends of eachof the secondaryshafts and on opposite sides of the engine,

substantially as described.

2. In an internal combustion engine, the combination with a crank shafthaving a main driving gear wheel in the middle thereof, of a subordinategear wheel on the crank shaft adjacent thereto, a series of secondaryshafts extending transversely of the crank shaft and symmetricallyonopposite sides of the engine, secondary gear wheels mounted one on thecentral part of each secondary shaft and intergeared with one anotherand with said subordinate gear wheel, and auxiliary devices arranged inpairs with one device of each pair atopposite ends of each of thesecondary shafts on opposite sides of the engine, substantially asdescribed.

3. In an internal combustion engine of the character described, thecombination with a crank shaft of a main driving twin gear wheel in themiddle thereof, a'subordinate gear wheel intermediate the parts of saidtwin gearwheel, a series of secondary shafts arranged transversely ofthe crank shaft and extending. symmetrically on opposite sides oftheengine, secondary gear wheels mounted one on the central part of eachsecondary shaft and driven from said subordinate gear, and auxiliarydevlces arranged in palrs of s1m1lar devices, one at each end of eachsecondary shaft and on opposite sides of the v engine, substantially asdescribed.

In testimony whereof I affix my slgnature.

VVILFRID THOMAS REID.

